//
//  KKMainTabBar.swift
//  SinaWeiBo
//
//  Created by King.Kong. on 16/5/20.
//  Copyright © 2016年 King.Kong. All rights reserved.
//

import UIKit

class KKMainTabBar: UITabBar {
    
    override init(frame: CGRect) {
        super.init(frame: frame)
        
        addSubview(plusBtn)
    }
    
    required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
  
    override func layoutSubviews() {
        super.layoutSubviews()
        
        let w = self.bounds.width / 5
        let h = self.bounds.height
        let rect = CGRect(x: 0, y: 0, width: w, height: h)
        
        var index:CGFloat = 0
        for subView in subviews {
            
            if subView.isKindOfClass(NSClassFromString("UITabBarButton")!) {
                
                subView.frame = CGRectOffset(rect, index * w, 0)
                
//                if index == 1 {
//                    index += 1
//                }
//                index += 1
                index += (index == 1 ? 2 : 1)
            }
            
            plusBtn.frame = CGRectOffset(rect, 2 * w, 0)
            
//            plusBtn.frame = CGRectOffset(rect, 2 * w, -20)
//            bringSubviewToFront(plusBtn)
        }
    }
    
    
    lazy var plusBtn: UIButton = {
        
        let btn = UIButton()
        btn.setImage(UIImage(named:"tabbar_compose_icon_add"), forState: .Normal)
        btn.setImage(UIImage(named:"tabbar_compose_icon_add_highlighted"), forState: .Highlighted)
        
        btn.setBackgroundImage(UIImage(named:"tabbar_compose_button"), forState: .Normal)
        btn.setBackgroundImage(UIImage(named:"tabbar_compose_button_highlighted"), forState: .Highlighted)
        
        
        return btn
    }()
    
}
